Why are electrons and protons are positively charged particles inside the nucleus

What do all atoms and ions of sodium have in common?

1. How is the modern periodic table organized? 2. What information about an atom's properties can you read from the periodic table? 3. How are the relationships of elements in a group different from the relationships of elements in a period? 4.

An earthquake is a vibration of the Earth produced by a rapid release of energy. This vibration usually begins when there is a build-up of stress in the Earth's crust resulting in

Why are all of the substances on the periodic table classified as elements? A. Substances on the periodic table cannot be dissolved in water or other liquids. B. All elements are pure substances. C.

Chose the mathematical formula expressing work.

Which of the following is the final concentration of KCl if 500 ml of 0.25 M KCl is diluted to a final volume of 5 L? 0.025 L 0.0025 L 25 L 2.5 L

What do you use to measure mass

A salt shaker filled with 17.0g sodium chloride contain how many moles?

When a radioactive decay occurs what is released? A. Only protons and neutrons B. Only electrons C. Protons/Neutrons, beta particle, gamma ray D. Only gamma rays

How is the process of scientific inquiry and the design process similar and how they are different.